Pith Number

pith:AKBCHKSP

pith:2020:AKBCHKSPL6BREY2KEN4MOLLVFW

not attested not anchored not stored refs pending

Discovery of a Fast Expanding Shell in the Inside-out Born-Again Planetary Nebula HuBi 1 Through High-Dispersion Integral Field Spectroscopy

E. Santamar\'ia, G. Ramos-Larios, J.A. Toal\'a, J. Liu, J.S. Rechy-Garc\'ia, L.F. Miranda, L. Sabin, M.A. Guerrero, S. Cazzoli, V.M.A. G\'omez-Gonz\'alez, X. Fang

arxiv:2009.13575 v1 · 2020-09-28 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AKBCHKSPL6BREY2KEN4MOLLVFW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T01:50:34.777691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

028223aa4f5f8312634a2378c72d752d99989481f6fb0c18d983ac58ab0a9251

Aliases

arxiv: 2009.13575 · arxiv_version: 2009.13575v1 · doi: 10.48550/arxiv.2009.13575 · pith_short_12: AKBCHKSPL6BR · pith_short_16: AKBCHKSPL6BREY2K · pith_short_8: AKBCHKSP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/AKBCHKSPL6BREY2KEN4MOLLVFW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 028223aa4f5f8312634a2378c72d752d99989481f6fb0c18d983ac58ab0a9251

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ad78ace4cb85071a7b920ff1c9e6df2b2bc813a6dc49f37b7f7083127a1f7d5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-28T18:40:57Z",
    "title_canon_sha256": "a06cc8ca550ff77d0040fe44c2bfdca6238ddcc238aa6be9fb5d3d95a7ce2ac2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.13575",
    "kind": "arxiv",
    "version": 1
  }
}